Conveyer.



PATENTED JULY 24, 1906. C. E. CHRIST. OONVBYER. APPLICATION FILEDIIIB.9.1906.

UNITED. STATES PATENT OFFIOF CHARLES E. CHRIST, OF TAMAQUA,PENNSYLVANIA, ASSIGNOR TO ISAAC CHRIST, OF TAMAQUA, PENNSYLVANIA.

CONVEYEH.

Specification of Letters Patent.

Patented July 24, 1906.

Application filed February 9,1906. Serial No. 300,257-

To all whom it may concern.-

Be it known that I, CHARLES E. CHRIST, a citizen of the United States,residing at Tamaqua, in the county of Schuylkill and State ofPennsylvania, have invented new and useful Improvements in Conveyors, ofwhich the following is a specification.

This invention relates to conveyers of the type shown in Letters PatentNo. 768,976, granted to Isaac Christ August 30, 1904, and my presentinvention is designed more particularly as an improvement upon theconstruction shown in said atent, although my invention is not limite tothe specific construction of the conveyer as a whole that is shown insaid patent.

The object of this invention is chiefly toprovide means for spacing thelinks so as to enable the teeth of driving or idle sprocketwheels toenter spaces between links which are mounted or arranged side by side.

My invention consists in the construction and combination of partssubstantially as hereinafter described and claimed.

Of the accompanying drawings, in which similar reference charactersindicate similar parts or features of construction in all of the views,Figure 1 represents a plan view of a portion of a conveyer, illustratingone of the embodiments of my invention, it being understood that anendless flight-conveyer in its entirety would comprise as manyduplicates of the members shown in said figure as would be necessary ordesirable, according to the length of conveyer desired. Fig. 2represents a side elevation of the parts or members shown in Fig. 1.Fig. 3 is a perspective view of the two-part or separable washer, thetwo halves of the washer being separated. Fig. 4 represents a sideelevation of one of the double-headed pins.

Each of the chain-links a is formed with an elongated opening or slot aportion of which is enlarged, as at b, for the purpose hereinafterdescribed. These links arepreferably arranged in pairs, each two pairs,which rest side by side and in contact, being connected by another airlying against the outer sides of and overlapping the ends of thefirst-mentioned pairs and pivotally connected therewith by thedouble-headed pins 0, having in tegral heads d. The heads of the pinsare of a diameter slightly less than that of the enlarged portions 6 ofthe slots, so that the pins may be passed endwise through said enlargedportions. The same pins which unite and pivotally connect thechain-links also secure in the desired positions the slotted plates 6.These plates are in the form of links, and they are provided withintegral wings, lugs, brackets, or arms, to which the carrier blades orbuckets (not shown) are to be secured. The plates 6 and theirprojections are herein referred to as fiight-links. Their slots and theenlargements f thereof are similar to the slots and enlargements b ofthe chain-link a.

The flight-links shown in Figs. 1 and 2 are formed with integral angularwings or lugs g, said wings or lugs being in practice formed with holesfor the reception of bolts by means of which suitable blades or scrapers(not shown) may be secured to their flat faces.

To assemble the parts shown in Figs. 1 and 2, all that is necessary isto place four chainlinks side by side and two flight-links against theouter surfaces of the two outer chainlinks. Then insert a pin a throughthe enlargements of the slots and then move the two inner chain-linkslengthwise and carry the pin with them. Two more chain-links are nowinserted between the outer chainlinks of the first-mentioned set untilthe en largements of their slots register with the slot enlargements ofthe said outer links, and then a second pin 0 is inserted. Upon thendrawing apart the two pairs of end links the pins are carried to theends of the slots, in which position the heads of the pins look all themembers together. Obviously the conveyer may be built up to any lengthdesired in this manner, and the flight-links may be applied where wantedlaterally adjacent to the chain-links at suitable intervals. It is alsoobvious that the reverse of the operation described enables the conveyerto be taken The construction as so far described is the same as shown inthe patent hereinbefore referred to.

It is fre uently desirable that the pairs of links whic are betweenthose links which have flight-links adjacent thereto shall be spacedapart in order that the teeth of drivf ing or driven sprocket-wheels mayenter such spaces. In other words, it is desirable that the two links ofevery pair shall be spaced apart. Of course the links which are adjacentto the flight-links are spaced by the presence of the alternating links;but it is also desirable that said alternating links shall be spaced sothat sprocket-wheels having a single peripheral row of teeth may beemployed. Inasmuch as it would be both expensive and difficult to formcollars on the pins cthat is, collars integral with the pins-I provideremovable collars or washers comprising two parts it 7L. Each member orpart It is formed at each end with a lug i and a recess 7c behind suchlug, this construction being clearly indicated in Fig. 3. Byconstructing the washers or collars removable in this manher it can beapplied to a pin after two links have been applied thereto in themanner. hereinbefore described. This is done by placing the two halvesor parts of the washers upon the pin while said two parts are out ofalinement. Then by a slight lateral movement of either half or partrelatively to the other the lugs t of each pair are caused to enter therecesses 7c of the other part. This assembling brings the two parts ofthe washer to the position shown in Fig. 1, after which the other linksare applied over the heads (1 of the pins in the manner described. Thisfinal placing of the last of the links holds the two parts of the washerwith their lugs intereng'agedthat is, the heads of the pins and theportions of the links which are between said heads and the washer holdthe two parts of the washer with their lugs interengaged.

It is to be understood that while I have shown a particular type offlight-link similar I to what is illustrated in the patent abovementioned different forms of flight-links might be employed or theymight be omitted entirely and the chain arranged as a diflerent type ofconveyer.

Inasmuch as the washers are of the same diameter as the portions of thelinks which are adjacent thereto, they will bear against the teeth ofsprocket-wheels equally with the ends of the adjacent links whensprocketwheels are employed having teeth adapted to enter only thespaces between the links which are more widely separated. In otherwords, if a sprocket-wheel is employed having teeth which are spacedfrom each other i a distance equal to alternating pairs of links saidsprocket-teeth may be wide enough to bear not only against the removablewashers or collars h, but also against the ends of the links a, andthereby aflord a wide engaging surface.

' Having now described my invention, I claim 1. A conveyer comprisingslotted chain links, double-headed pins pivotally connecting the links,said links having their slots formed with enlargements to permit thepassage of the heads of the pins, and two-part washers havinginterengaging lugs mounted on the pins between two links, the two partsof the washers being held with their lugs interengaged by the heads ofthe pins and the portions of thelinks between said heads and washers.

2. A conveyer comprising slotted chainlinks alternately arranged incontacting and spaced pairs, double-headed pins pivotally connectingsaid links, said links having their slots formed with enlargements topermit of the passage of the heads of the pins, and twopart washershaving interengaging lugs mounted on the pins between two links, the twoparts of the washers being held with their lugs interengaged by theheads of the pins and the portions of the links between said heads andwashers.

3. A conveyer comprising slotted chainlinks, double-headed pinspivotally connecting the links, said links having their slots formedwith enlargements to permit of the passage of the pins, and two-partwashers mounted on the pins between the adjacent links, said washershaving laterally-projecting lugs at the endsof each of the two partsthereof, and recesses behind said lugs.

4. A conveyer comprising slotted chainlinks and slotted flight-links,double-headed pins pivotally connecting the ends of the chain-links andalso supporting and locking the flight-links in position, all of saidlinks having theirslots formed with enlargements to permit the passageof the heads of said pins, the flight-links corresponding in length withthe chain-links and supported against the sides thereof by said pins,and removable two-part washers mounted on the pins between thechain-links, said washers having interengaging lugs held in connectedposition by the links interposed between said washers and the heads ofthe pins.

In testimony whereof I affix my signature in presence of two subscribingwitnesses.

CHAS. E. CHRIST. Witnesses:

SAM FALK, Jr.,

EMANUEL F. BROSIUS.

